Dour little noir from Hammer proving that not only is it crime that doesn't pay but ANY vice whatsoever. For students and genre completists only.
American gambler in London is desperate to get in with the upper classes and debases himself to do so. Why exactly is a mystery, as everyone of these social "betters" is an obnoxious hateful twit. I realize this is the point, but it makes for a tiresome film, doubly so for Clark's thick-headed character, who is so stupid that it's hard to believe he managed to find his way to England, let alone establish successful gambling dens in a foreign city.